Metal interlocking brackets
Frame: Kiln dry Pine Wood 
Sit base: S Spring + Steel Wire
Fixed Frame Cover, Loose Seat & Back cushions
Seat Cushion: 35D HD Foam + Feather Blend
Back Cushion: Feather Blend

SOFA Box 1: 79.52 x 41.73 x 19.68/23.62
CORNER Box 2: 41.73 x 41.73 x 23.62
CHAISE Box 3: 50.39 x 41.73 x 19.68/23.62